Strawberry plant named &#39;drisstrawthree&#39;

ABSTRACT

This invention relates to a new and distinct cultivar of strawberry plant named ‘DrisStrawThree’. The new cultivar is primarily characterized by its large fruit size, heavy fruit production, and resistance to powdery mildew.

GENUS AND SPECIES

Fragaria×ananassa

VARIETY DENOMINATION

‘DrisStrawThree’

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry cultivar designated ‘DrisStrawThree’ and botanically known as Fragaria×ananassa. This new strawberry cultivar was discovered in October, 2002 and originated from a cross between the female parent ‘5F205’, a proprietary strawberry plant (unpatented) and the male parent ‘San Juan’ (U.S. Plant Pat. No. 12,899). The original seedling of the new cultivar was asexually propagated at a nursery in Shasta County, California. ‘DrisStrawThree’ was subsequently asexually propagated and underwent further testing at a nursery in Ventura County, California for four years. The present invention has been found to retain its distinctive characteristics through successive asexual propagations.

DESCRIPTION OF THE PHOTOGRAPHS

The accompanying color photographs show typical specimens of the new cultivar at various stages of development as nearly true as it is possible to make in color reproductions.

FIG. 1 shows overall plant habit including fruit at various stages of development.

FIG. 2 shows leaves of the plant with three leaflets.

FIG. 3 shows both the upperside and underside of several of the flowers.

FIG. 4 shows the whole fruit.

FIG. 5 shows the fruit in longitudinal cross-section.

DESCRIPTION OF THE NEW CULTIVAR

The following description of ‘DrisStrawThree’ is based on observations taken from the 2002 to 2006 growing seasons in Ventura County, California. This description is in accordance with UPOV terminology. Color designations, color descriptions, and other phenotypical descriptions may deviate from the stated values and descriptions depending upon variation in environmental, seasonal, climatic and cultural conditions. ‘DrisStrawThree’ has not been observed under all possible environmental conditions. Color terminology follows The Royal Horticultural Society Colour Chart, London (R.H.S.) (2001).

DETAILED BOTANICAL DESCRIPTION

Table 1 shows plant characteristics of the new variety compared with plant characteristics of the parent ‘San Juan’. Plant characteristics include plant height, leaf shape in cross section, fruit hollow center, fruit texture when tasted, and reaction to aphids. TABLE 1 Characteristic ‘DrisStrawThree’ ‘San Juan’ Plant height (cm) 20.5 28.0 Leaf shape in Slightly concave Flat to slightly cross convex Fruit hollow center Small Medium Fruit texture when Very fine Medium tasted Aphis spp. Moderately Susceptible (Aphids) resistant

Table 2 shows plant characteristics of the new variety compared with plant characteristics of the commercial varieties, ‘Driscoll Camarillo’ (U.S. Plant Pat. No. 14,771) and ‘Baeza’ (U.S. Plant Pat. No. 11,548). Plant characteristics include plant height, diameter, number of crowns per plant, habit, density of individual plant and vigor. TABLE 2 ‘Driscoll Characteristic ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Plant height (cm) 20.5 23.3 22.4 Plant diameter 45.1 43.9 44.7 (cm) Number of 4 3 3 crowns/plant Habit Flat globose Globose Globose Density of Dense Medium to Medium to individual plant Dense Dense Vigor Strong Strong Medium

Table 3 shows leaf characteristics of the new cultivar compared with leaf characteristics of ‘Driscoll Camarillo’ and ‘Baeza’. Leaf characteristics include terminal leaflet length and width in centimeters, length to width ratio, number of teeth per terminal leaflet, shape of teeth, color of upperside and underside of leaf, leaf shape in cross section, leaf blistering, leaf glossiness, number of leaflets, leaflet margin, and shape of leaf base. TABLE 3 ‘Driscol Leaf Characteristic ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Terminal leaflet 0.82 0.90 0.83 length (cm) Terminal leaflet 0.80 0.97 0.91 width (cm) Terminal leaflet 1.04 0.93 0.91 length/width ratio No. teeth/terminal 17 27 29 leaflet Shape of teeth Rounded Rounded Rounded Color of upperside RHS 139A RHS N189B RHS 147A of leaf Color of underside RHS 191B RHS 137C RHS 137C of leaf Leaf shape in cross Slightly concave Slightly concave Concave section Leaf blistering Weak Medium Medium Leaf glossiness Weak Weak Weak No. leaflets Three only Three only Three only Terminal leaflet Revolute Revolute Revolute margin Terminal leaflet Obtuse Rounded Rounded base shape

Table 4 shows information about the petiole, the petiolule, the bract, and the stipule of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. This includes petiole length in centimeters, petiole diameter in centimeters, petiolule length in centimeters, petiolule diameter in centimeters, bract frequency per petiole, stipule length in centimeters, stipule width in centimeters, stipule pubescence, petiole pubescence, pose of hairs on the petiole, color of the petiole and color of the petiolule. TABLE 4 Characteristic ‘DrisStrawThree’ ‘Driscoll Camarillo’ ‘Baeza’ Petiole length (cm) 14.1 12.7 13.4 Petiole diameter 0.412 0.408 0.420 (cm) Petiole Dense Sparse Medium pubescence to dense Petiole pose of Outward to Outwards Outwards hairs downward Petiole color RHS 144B RHS 144B RHS 144B Petiolule color RHS 145B RHS 145B RHS 145B Petiolule length 1.098 1.255 1.456 (cm) Petiolule diameter 0.236 0.254 0.232 (cm) Bract frequency 1 1 1 Stipule length (cm) 3.8 4.0 3.7 Stipule width (cm) 0.985 1.070 1.256 Stipule Dense Sparse Sparse pubescence

Table 5 shows stolon characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. These characteristics include the number of stolons, the anthocyanin coloration of the stolons, the thickness of the stolons, and the pubescence of the stolons. TABLE 5 ‘Driscoll Characteristic ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Stolon Number Few to medium Few to medium Few to medium Stolon Anthocyanin Strong Weak to medium Weak to medium Stolon Thickness Medium Thick Thick to very thick Stolon Pubescence Sparse Sparse Medium to dense

Table 6 shows inflorescence characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. These characteristics include inflorescence position relative to foliage, relative flower size, flower diameter in centimeters (measured from petal tip to petal tip), relative spacing of petals, petal length in centimeters, petal width in centimeters, petal length to width ratio, petal color, calyx diameter in centimeters (measured on back of flower from sepal tip to sepal tip), diameter of calyx relative to corolla, diameter of inner calyx relative to outer, sepal length in centimeters (measured from sepal tip to point of attachment to receptacle), sepal width in centimeters, receptacle color and anther color. TABLE 6 ‘Driscoll Characteristic ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Inflorescence position Beneath Above Above relative to foliage Flower size Medium Medium Medium Flower diameter (cm) 3.001 2.263 2.490 Petal spacing Overlapping Overlapping Overlapping Petal length (cm) 1.502 1.262 1.496 Petal width (cm) 1.531 1.263 1.511 Petal length/width ratio 0.98 1.00 0.99 Petal color RHS 155B RHS 155C RHS 155B Calyx diameter (cm) 4.088 2.550 2.925 Calyx diameter relative Larger Smaller Same size to corolla Inner calyx diameter Same size Same size Same size relative to outer Sepal length (cm) 1.582 0.964 1.087 Sepal width (cm) 0.817 0.544 0.505 Receptacle color RHS N144A RHS 2B RHS 1A Anther color RHS 17A RHS 15B RHS 17B

Table 7 shows fruit characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. TABLE 7 ‘Driscoll Characteristic ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Fruiting truss 13.4 26.5 21.7 length (cm) Fruiting truss Prostrate Erect Erect attitude Fruiting truss length Medium Long Long Fruit length (cm) 4.93 3.76 4.35 Fruit width (cm) 4.36 3.73 3.92 Fruit length/ 1.13 1.01 1.11 width ratio Fruit weight (g) 27.5 21.0 22.3 Relative fruit size Very large Medium Medium Predominant Almost Conical Conical fruit shape cylindrical Difference in shape Slight None or very None or between primary & slight very slight secondary fruits Band without Narrow Absent or very Absent or achenes narrow very narrow Unevenness of Medium Medium Medium fruit surface Fruit skin color RHS 45B RHS 46A RHS 46B Red Red Red Evenness of Uneven Even Even fruit color Fruit glossiness Medium Medium Medium Insertion of achenes Level with Level with Level with surface surface surface Achene coloration- RHS 165A RHS 166B RHS 163B sunward side of Red to purple, Red to purple, Red to berry possibly greyed possibly greyed purple, possibly greyed Achene coloration- RHS 151C yellow RHS 151C RHS 151A shaded side of berry to green yellow to green Yellow to to green Achenes per berry 243.6 316.2 361.3 Achene weight 0.000664409 0.000570367 0.000466731 Insertion of calyx Set above Level Level the fruit Pose of calx Reflexed Reflexed Reflexed segments Size of calyx in Smaller Same size Same size relation to fruit to larger Adherence of calyx Strong Strong Strong Firmness of flesh Firm Firm Firm Color of the flesh RHS 155A RHS 155A RHS 155A (White) to RHS (White) to RHS (White) to RHS 44D (light red) 44D (light red) 38B (pale rose) Evenness of Slightly uneven Even Even flesh color Distribution of Marginal and Only marginal Only marginal flesh color central Hollow center Small Absent Medium Sweetness Strong Medium Medium Acidity Weak Medium Medium Texture when tasted Very fine Medium Medium Time of flowering Early Early Late Harvest maturity Mid-season, early Mid-season, Late June to late early June to early July to December late December late December Type of bearing Fully Fully Fully everbearing everbearing everbearing Grams of fruit/plant 500 286 289

Table 8 shows the resistance to different forms of stress of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. These forms of stress include drought, high temperatures, wind, high pH, and high soil salt level. TABLE 8 Reaction to ‘Driscoll Stress ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Drought Moderately Moderately Moderately resistant resistant resistant High Moderately Moderately Moderately temperatures resistant resistant resistant Wind Moderately Moderately Moderately resistant resistant resistant High pH Moderately Moderately Moderately resistant resistant resistant High soil Moderately Moderately Susceptible salt level resistant resistant

Table 9 shows pest and disease characteristics of the new cultivar compared to ‘Driscoll Camarillo’ and ‘Baeza’. TABLE 9 ‘Driscoll Pest or Disease ‘DrisStrawThree’ Camarillo’ ‘Baeza’ Tetranychus Moderately Moderately Moderately urticae (2- spotted resistant resistant resistant spider mite) Tarsonemus Moderately Moderately Moderately pallidus resistant resistant resistant Aphelencoides Moderately Moderately Moderately fragariae resistant resistant resistant Pratylenchus Moderately Moderately Moderately penetrans resistant resistant resistant Ditylenchus Moderately Moderately Moderately dipsac resistant resistant resistant Anthonomus Moderately Moderately Moderately rubi resistant resistant resistant Aphis spp. Moderately Moderately Moderately (Aphids) resistant resistant resistant Lygus hesperus Moderately Moderately Moderately (Lygus bug) resistant resistant resistant Botrytis Moderately Moderately Moderately fruit rot Susceptible Susceptible Susceptible Powdery Resistant Highly Susceptible mildew susceptible 

1. A new and distinct cultivar of strawberry plant as described and shown herein. 